Chapter 7 Checking and Troubleshooting
G
7-11
CAUTION
The failure of the device used in the inverter may not be predicted in
advance. The failure of the device may cause the error of input power
fuse or the fault trip. If you are suspicious of the failure of device, please
contact our sales representative.
(2) Routine Checking
Area
Checking
points
Description
How to
Check
Judgment
Criterion
Instrument
Overview
Ambient
environment
Check ambient
temperature, humidity,
existence of dust, etc..
See the Caution for
Safety.
Ambient temperature
should be -10 ~ +40
degree C; Freezing is
not allowed; Ambient
humidity to be 50% or
less; Dew is not
allowed.
Temperature
meter, Humidity
meter, Recorder
Entire
system
Isn't there any
vibration or unusual
sound?
Judgement by visual
or auditory sense.
There must be no
unusual record.
-
Power,
Voltage
Is the main circuit
voltage normal
Check the voltage
among R, S, and T
phases on the inverter
terminal .block
-
Digital
Multi Meter
/Tester
Main circuit
Flat condenser
1) Isn't the liquid inside
leaked?
2) Isn't the safety vent
protruded? No
sagging
phenomenon?
Check 1) and 2) by
eyes.
There must be no
unusual result from 1)
and 2).
-
Cooling
system
Cooling
fan
1) Isn't there any
unusual vibration or
unusual sound?
1) Turn it using hand
with the power Off.
1) Rotate it softly -
To Next Page
Loading...
Need help?
General
